Produce graphs of f that reveal all the important aspects of the curve. Then use calculus to find the following. (Enter your answers using interval notation. Round your answers to two decimal places.) X x³ + x² +8 Find the interval(s) of increase. (-∞, -2.40) U (1.44, ∞) f(x) = Find the interval(s) of decrease. (1.44, ∞) Find the inflection points of the function. smallest x-value largest x-value (x, y) = (x, y) = (x, y) = -.50,-.06 0,0 2.36,.09 Find the interval(s) where the function is concave up. -∞, - 2.40) U (-.50, 0) U (2.36, ∞) + x cal Ope Fur

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